5051666005155 has 144 divisors (see below), whose sum is σ = 11160753537024. Its totient is φ = 2090142956160.

The previous prime is 5051666005151. The next prime is 5051666005193. The reversal of 5051666005155 is 5515006661505.

It is not a de Polignac number, because 5051666005155 - 2² = 5051666005151 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 5051666005155.

It is not an unprimeable number, because it can be changed into a prime (5051666005151) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 5047134 + ... + 5964636.

It is an arithmetic number, because the mean of its divisors is an integer number (77505232896).

Almost surely, 2^{5051666005155} is an apocalyptic number.

5051666005155 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

5051666005155 is an abundant number, since it is smaller than the sum of its proper divisors (6109087531869).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5051666005155 is a wasteful number, since it uses less digits than its factorization.

5051666005155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917766 (or 917756 counting only the distinct ones).

The product of its (nonzero) digits is 675000, while the sum is 45.

The spelling of 5051666005155 in words is "five trillion, fifty-one billion, six hundred sixty-six million, five thousand, one hundred fifty-five".